public void GetExponent_should_return_its_largest_exponent()
{
var may21_2016 = new March26_2016(); //new May21_2016();
// var result_162_3 = new May21_2016().GetExponent(162, 3);
var result_27_3_3 = may21_2016.GetExponent(27, 3);
Assert.AreEqual(result_27_3_3, 3);
var result_28_3_0 = may21_2016.GetExponent(28, 3);
Assert.AreEqual(result_28_3_0, 0);
var result_280_7_1 = may21_2016.GetExponent(280, 7);
Assert.AreEqual(result_280_7_1, 1);
var result_n250_5_3 = may21_2016.GetExponent(-250, 5);
Assert.AreEqual(result_n250_5_3, 3);
var result_18_1_n1 = may21_2016.GetExponent(18, 1);
Assert.AreEqual(result_18_1_n1, -1);
var result_128_4_3 = may21_2016.GetExponent(128, 4);
Assert.AreEqual(result_128_4_3, 3);
}
public void Is121Array_should_validate_121_array()
{
var _may21_2016 = new March26_2016(); //new May21_2016();
//Valid:1
//Invalid:0
//Valid, because the same number of 1s are
//at the beginning and end of the array
// and there is atleast one 2 in between them
var r1 = _may21_2016.Is121Array(new int[] { 1, 2, 1 });
Assert.AreEqual(r1, 1);
//Valid, because the same number of 1s are at the beginning
//and end of the array and there is at least one 2 in between them
var r2 = _may21_2016.Is121Array(new int[] { 1, 1, 2, 2, 2, 1, 1 });
Assert.AreEqual(r2, 1);
//Invalid, because the number of 1s at the end does not
//equal the number of 1s at the beginning
var r3 = _may21_2016.Is121Array(new int[] { 1, 1, 2, 2, 2, 1, 1, 1 });
Assert.AreEqual(r3, 0);
//Invalid, because the middle does not contain only 2s
var r4 = _may21_2016.Is121Array(new int[] { 1, 1, 2, 1, 2, 1, 1 });
Assert.AreEqual(r4, 0);
//Invalid, because the array contains a number other than 1 and 2
var r5 = _may21_2016.Is121Array(new int[] { 1, 1, 1, 2, 2, 2, 1, 1, 1, 3 });
Assert.AreEqual(r5, 0);
//Invalid, because the array doesn't contain any 2s
var r6 = _may21_2016.Is121Array(new int[] { 1, 1, 1, 1, 1, 1 });
Assert.AreEqual(r6, 0);
//Invalid, because the first element of the array is not a 1
var r7 = _may21_2016.Is121Array(new int[] { 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1 });
Assert.AreEqual(r7, 0);
//Invalid, because the last element of the array is not a 1
var r8 = _may21_2016.Is121Array(new int[] { 1, 1, 1, 2, 2, 2, 1, 1, 2, 2 });
Assert.AreEqual(r8, 0);
//Invalid, because there are no 1s in the array
var r9 = _may21_2016.Is121Array(new int[] { 2, 2, 2 });
Assert.AreEqual(r9, 0);
}
